WO2004038267B1 - Flow control device - Google Patents

Flow control device

Info

Publication number
WO2004038267B1
WO2004038267B1 PCT/IB2003/004412 IB0304412W WO2004038267B1 WO 2004038267 B1 WO2004038267 B1 WO 2004038267B1 IB 0304412 W IB0304412 W IB 0304412W WO 2004038267 B1 WO2004038267 B1 WO 2004038267B1
Authority
WO
WIPO (PCT)
Prior art keywords
control device
flow control
seal member
flow
inlet
Prior art date
Application number
PCT/IB2003/004412
Other languages
French (fr)
Other versions
WO2004038267A1 (en
Inventor
Frank Curtolo
Kurt Karl Prinsloo
Original Assignee
Pebble Bed Modular Reactor Pty
Frank Curtolo
Kurt Karl Prinsloo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pebble Bed Modular Reactor Pty, Frank Curtolo, Kurt Karl Prinsloo filed Critical Pebble Bed Modular Reactor Pty
Priority to AU2003264779A priority Critical patent/AU2003264779A1/en
Publication of WO2004038267A1 publication Critical patent/WO2004038267A1/en
Publication of WO2004038267B1 publication Critical patent/WO2004038267B1/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
    • G21C19/202—Arrangements for handling ball-form, i.e. pebble fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/18—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces
    • F16K5/184—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Sliding Valves (AREA)

Abstract

This invention relates to a flow control device (10) which includes a housing (400) defining a chamber into which at least two spaced apart passages (402) extend. The device (10) further includes a valve member (40) having a body (42) mounted for angular displacement within the chamber, the body defining an inlet opening (44), an outlet opening (46) and a flow passage (48) connecting the two in flow communication. The body (42) of the valve member (40) is angularly displaceable between a first position, in which the inlet and outlet openings (44, 46) are in register with the passages(402), and a second position, in which at least one of the inlet and outlet openings (44, 46) is out of register with the associated passage (402). At least one seal member (66, 68) is mounted on the body (42) at a position spaced from the inlet and outlet openings (44, 46). The at least one seal member (66, 68) is displaceable relative to the body (42), between a retracted position, and an extended position.

Claims

AMENDED CLAIMS[received by the International Bureau on 21 May 2004 (21.05.2004); original claims 1-21 replaced by new claims 1-15 (4 pages)]
1. A flow control device which includes a housing defining a chamber into which at least two spaced apart passages extend; a valve member having a body which is mounted for angular displacement within the chamber, the body defining an inlet opening, an outlet opening and a flow passage connecting the inlet opening in flow communication with the outlet opening, the body ofthe valve member being angularly displaceable relative to the housing between a first position, in which the inlet and the outlet openings are in register with the passages of the housing to connect them in flow communication, and a second position, in which at least one ofthe inlet and outlet openings is out of register with the associated passage; at least one seal member which is mounted on the body for displacement therewith, the seal member being mounted on the body at a position spaced from the inlet and outlet openings and being displaceable relative to the body, at least when the body is in its second position, between a retracted position, in which it is clear of the housing, and an extended position, in which it is in sealing contact with the housing; and a rotatable drive shaft which is disengageably engageable with the body by means of a clutch arrangement, the clutch arrangement drivingly connecting the body to the drive shaft so that, as the drive shaft is displaced from a first, or rest, position to an intermediate position, the body is displaced from its first position to its second position, and when the shaft is in its intermediate position the clutch arrangement disengages the drive connection between the shaft and the body such that displacement of the shaft beyond its intermediate position causes displacement of the at least one seal member from its retracted position, towards which it is resiliently biassed, to its extended position.
2. A flow control device as claimed in Claim 1 , in which the at least one seal member is positioned such that when the body is in its first position the seal member is out of register with the passages and when the body is in its second position the seal member is in register with at least one of the passages.
3. A flow control device as claimed in Claim 2, in which the at least one seal member is biassed towards its retracted position and is displaceable between its retracted position and its extended position only when the body is in its second position.
4. A flow control device as claimed in any one of Claims 2 to 4, inclusive, in which the inlet opening, outlet opening and flow passage are circular, to pass spheres conveyed in a fluid stream therethrough.
5. A flow control device as claimed in Claim 4, in which the diameter of the inlet and outlet openings and flow passage is greater than 60 mm.
6. A flow control device, as claimed in any one of the preceding claims, which includes actuating means for actuating displacement of the at least one seal member between its retracted and its extended positions.
7. A flow control device as claimed in Claim 6, in which the actuating means includes a cam arrangement.
8. A flow control device as claimed in Claim 7, in which the drive shaft drives the cam arrangement.
9. A flow control device as claimed in Claim 8, in which the cam arrangement includes a cam-formation on the drive shaft. 21
10. A flow control device as claimed in any one of the preceding claims, in which the at least one seal member includes a base which is connected to the body for displacement relative thereto and a floating member which defines a sealing face and which is urged into abutment with the base.
11. A flow control device as claimed in Claim 10, in which the base and the floating member have complementary abutment surfaces, at least one of which is curved such that relative displacement of the base and floating member results in the one abutment surface rolling over the other and inhibits the abutment surfaces sliding relative to one another.
12. A flow control device as claimed in any one of the preceeding claims, which includes two opposed sealing faces which are angularly displaceable as a unit.
13. A flow control device as claimed in Claim 12, in which the sealing faces are laterally displaceable between their extended and retracted positions as a unit.
14. A fluid flow line, which includes at least two flow line elements; and a flow control device as claimed in any one of Claims 1 to 13, inclusive, connecting the flow line elements together.
ENDED SHEET (ARTICLE 19) 22
15. A nuclear power plant having a nuclear reactor of the pebble bed type and an element handling system for transporting spherical fuel and/or moderator elements, the element handling system including at least one flow control device as claimed in any one of Claims 1 to 13, inclusive.
PCT/IB2003/004412 2002-10-25 2003-10-06 Flow control device WO2004038267A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003264779A AU2003264779A1 (en) 2002-10-25 2003-10-06 Flow control device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200208669 2002-10-25
ZA2002/8669 2002-10-25

Publications (2)

Publication Number Publication Date
WO2004038267A1 WO2004038267A1 (en) 2004-05-06
WO2004038267B1 true WO2004038267B1 (en) 2004-07-08

Family

ID=32178053

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/004412 WO2004038267A1 (en) 2002-10-25 2003-10-06 Flow control device

Country Status (2)

Country Link
AU (1) AU2003264779A1 (en)
WO (1) WO2004038267A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109801725A (en) * 2018-12-07 2019-05-24 清华大学 Single-pass device applied to pebble bed reactor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2625618C (en) * 2006-02-09 2015-04-14 Pebble Bed Modular Reactor (Proprietary) Limited Nuclear plant with a pebble bed nuclear reactor
CN101770825B (en) * 2009-12-25 2012-07-25 清华大学 Integrated discharging device for high-temperature gas-cooled reactor
CN103778981B (en) * 2014-01-24 2016-02-24 清华大学 A kind of burnup measurement steady arm being applied to high temperature gas cooled reactor
ES2552586B1 (en) * 2014-05-28 2016-09-14 Bsh Electrodomésticos España, S.A. Gas regulating valve, cooking point, and gas cooker
CN109545407B (en) * 2018-11-28 2020-06-09 清华大学 Spherical element detecting and positioning device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200474A (en) * 1938-07-13 1940-05-14 Alfred G Heggem Valve actuating mechanism
US2501635A (en) * 1945-04-19 1950-03-21 Crane Co Rotary plug valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109801725A (en) * 2018-12-07 2019-05-24 清华大学 Single-pass device applied to pebble bed reactor
CN109801725B (en) * 2018-12-07 2020-07-07 清华大学 Single-way device applied to ball bed pile

Also Published As

Publication number Publication date
WO2004038267A1 (en) 2004-05-06
AU2003264779A1 (en) 2004-05-13

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